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EC number: 807-577-5 | CAS number: 1182844-21-8
The test item was investigated for its ready biodegradability in a Manometric Respirometry Test over a period of 28 days. The biodegradation was followed by the oxygen uptake of the micro organisms during exposure. As a reference item sodium benzoate was tested simultaneously under the same conditions as the test item, and functioned as a procedure control.The GLP study was performed according to OECD TG 301F.
Biodegradation of test item
After correction of the mean biochemical oxygen demand of the inoculum controls at the end of the 28 -day exposure period no degradation as found.
Biodegradation of sodium benzoate
The reference item was sufficiently degraded to 91 % after 14 days and to 94 % after 28 days of incubation, thus confirming the suitability of the used activated sludge inoculum.
Biodegradation in the Toxicity Control
In the toxicity control containing both, the test item and the reference item, 37 % biodegradation was noted within 14 days and 38 % biodegradation was determined after 28 days of incubation. Thus, the test item can be assumed to be not inhibitory on the activated sludge micro organisms.
The degradation rate of the test material did not reach 60 % within the 10 -day window and after 28 days of incubation. Thus the test item is not readily biodegradable.
The informtion for this endpoint study record was obtained from an experimental study. The OECD GLP criteria were met and the methods applied are fully compliant with OECD TG 301F. The degradation rate of the test material did not reach 60 % within the 10 -day window and after 28 days of incubation. Thus the test item is not readily biodegradable.
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